DE602004000261T2 - Apparatus and method for regenerating a particulate filter of an exhaust gas purification device of an internal combustion engine - Google Patents
Apparatus and method for regenerating a particulate filter of an exhaust gas purification device of an internal combustion engine Download PDFInfo
- Publication number
- DE602004000261T2 DE602004000261T2 DE602004000261T DE602004000261T DE602004000261T2 DE 602004000261 T2 DE602004000261 T2 DE 602004000261T2 DE 602004000261 T DE602004000261 T DE 602004000261T DE 602004000261 T DE602004000261 T DE 602004000261T DE 602004000261 T2 DE602004000261 T2 DE 602004000261T2
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- Prior art keywords
- temperature
- soot
- exhaust gas
- engine
- regeneration
- Prior art date
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- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 12
- 238000000746 purification Methods 0.000 title claims 5
- 230000001172 regenerating effect Effects 0.000 title claims 2
- 239000004071 soot Substances 0.000 claims description 159
- 238000011069 regeneration method Methods 0.000 claims description 74
- 230000008929 regeneration Effects 0.000 claims description 72
- 238000002347 injection Methods 0.000 claims description 38
- 239000007924 injection Substances 0.000 claims description 38
- 239000000446 fuel Substances 0.000 claims description 15
- 238000009825 accumulation Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 101150100956 VSP2 gene Proteins 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
- F02D41/029—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a particulate filter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/045—Detection of accelerating or decelerating state
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/10—Introducing corrections for particular operating conditions for acceleration
- F02D41/105—Introducing corrections for particular operating conditions for acceleration using asynchronous injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0421—Methods of control or diagnosing using an increment counter when a predetermined event occurs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0422—Methods of control or diagnosing measuring the elapsed time
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2051—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using voltage control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/228—Warning displays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0406—Intake manifold pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0414—Air temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
- F02D2200/503—Battery correction, i.e. corrections as a function of the state of the battery, its output or its type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Description
Die vorliegende Erfindung bezieht sich auf eine Regenerierungsvorrichtung und ein Verfahren für einen Russfilter, die zur Nachverarbeitung von Abgas hauptsächlich eines Dieselmotors eingesetzt werden, und eine Vorrichtung zur Reinigung von Abgas, die die Regenerierungsvorrichtung und das Verfahren, die oben beschrieben wurden, benutzt.The The present invention relates to a regeneration device and a method for a soot filter, which is used for post-processing of exhaust gas mainly one Diesel engines are used, and a device for cleaning of exhaust gas, the regeneration device and the method, used as described above.
Ein Diesel-Russfilter ist eine Vorrichtung zum Fangen (oder Sammeln) von Russ, die dadurch gebildet wurde, dass Keramik in einen wabenförmigen Monolithen gegossen wurde, und wird im Allgemeinen dazu benutzt, Russpartikel (im Folgenden einfach als Russ bezeichnet) zu entfernen, die von dem Dieselmotor als Abgas freigesetzt wurden. Während des Laufens des Dieselmotors sammelt sich der Russ in zunehmendem Maß über die Zeit an. Wenn die angesammelte Russmenge über einer Toleranzmenge liegt, tritt ein Verstopfen des Filters auf und der Abgasdruck erhöht sich, wodurch ein schlechter Einfluss auf das Funktionieren des Antriebs ausgeübt wird. Deshalb ist es notwendig, den angesammelten Russ in regelmäßigen Zeitabständen aus dem Abgas zu entfernen, um ein Auftreten des Verstopfens des Filters zu vermeiden.One Diesel soot filter is a device for catching (or collecting) from Russ, which was formed by making ceramics in a honeycomb monolith was poured, and is generally used to soot particles (hereinafter simply referred to as soot) to remove from the diesel engine were released as exhaust gas. While the diesel engine is running the soot accumulates increasingly over time. When the accumulated Soot amount over is a tolerance amount, occurs clogging of the filter and the exhaust pressure increases which has a negative effect on the functioning of the Drive exercised becomes. Therefore, it is necessary to periodically collect the accumulated soot Remove the exhaust gas to an occurrence of clogging of the filter to avoid.
Eine japanische Patentanmeldung, deren erste Veröffentlichung Nr. 2000-179326 am 27. Juni 2000 veröffentlicht wurde, legt beispielhaft ein früher vorgeschlagenes Verfahren für einen Diesel-Russfilter dar, in dem der Russ verbrannt und entfernt wird und indem eine Vorrichtung zur Steuerung des Motors wie beispielsweise einer Einspritzdüse bedient wird, so dass die Temperatur des Abgases auf einen Wert erhöht wird, der höher ist, als er in der normalen Zeit erreicht wird, und der angesammelte Russ wird auf eine Temperatur erhitzt, die gleich oder höher als die Verbrennungstemperatur ist. Bei dem offen gelegten Regenerierungsverfahren wird die Abgastemperatur von einem Zeitpunkt ab erhöht, der als der Zeitpunkt bestimmt wurde, zu dem der Diesel-Russfilter regeneriert werden sollte, bis zu einem Zeitpunkt, zu dem der Russ verbrannt wurde und die angesammelte Menge ausreichend verringert wurde, so dass zu erwarten ist, dass der Diesel-Russfilter als regeneriert angesehen werden kann. Eine Solltemperatur des Abgases, die während dieser Zeitspanne erreicht werden muss, wird auf eine Temperatur von beispielsweise 600°C gesetzt, die so hoch ist, wie es notwendig ist, um den Russ aktiv zu verbrennen. Ein Verfahren zum Erhöhen der Abgastemperatur auf eine solche Solltemperatur wie oben beschrieben ist, dass Einspritzdüsen als Vorrichtungen zur Steuerung des Motors im Dieselmotor bedient werden, in dem der eingespritzte Kraftstoff eine Vielzahl von Malen verteilt wird und der Zeitpunkt zum Einspritzen einer Nacheinspritzung, die nach der Haupteinspritzung erfolgt, verzögert ist im Vergleich zum normalen Zeitpunkt.A Japanese Patent Application, First Publication No. 2000-179326 published on June 27, 2000 was, sets an example earlier proposed method for a diesel soot filter in which the soot is burned and removed is and by a device for controlling the engine such as an injection nozzle is operated so that the temperature of the exhaust gas to a value elevated that gets higher is when it is reached in the normal time, and the accumulated Russ is heated to a temperature equal to or higher than the combustion temperature is. In the disclosed regeneration process the exhaust gas temperature is increased from a time, the was determined as the time at which the diesel soot filter regenerates should be, until a time when the soot burned and the accumulated amount was reduced sufficiently, so that is to be expected that the diesel soot filter regenerates as can be viewed. A target temperature of the exhaust gas during this Time span must be reached, for example, to a temperature of 600 ° C set, which is as high as necessary to actively burn the soot. A method to increase the exhaust gas temperature to such a target temperature as described above is that injectors operated as devices for controlling the engine in the diesel engine where the injected fuel is a variety of times is distributed and the time to inject a post-injection, which takes place after the main injection, is delayed compared to normal Time.
Wenn jedoch die Bedingung beim Laufen des Dieselmotors in den Leerlauf-Bereich oder einen Bereich mit niedriger Reisegeschwindigkeit fällt, in dem die Temperatur des Abgases natürlicherweise gering ist, kann ein alleiniges Bedienen der Vorrichtung zur Steuerung des Motors nicht die Abgastemperatur auf der oben beschriebenen Solltemperatur anheben. Daher kann, wenn die Bedingung beim Laufen des Dieselmotors in den oben beschriebenen Laufbereich fällt, sogar dann, wenn bestimmt wurde, dass es an der Zeit wäre, den Diesel-Russfilter zu regenerieren, das Bedienen der Vorrichtung zur Steuerung des Motors diese Bestimmung nicht augenblicklich umsetzen. Aus diesem Grund wird der Russ kontinuierlich angesammelt und der Abgasdruck weiter erhöht. Zusätzlich dazu tritt oft der Fall auf, dass, wenn aufgrund der Bestimmung, dass die Bedingung beim Laufen des Motors aus dem oben beschriebenen Bereich fällt, versucht wird, den Regenerierungsvorgang für den Russfilter auszuführen, die angesammelte Menge an Russ übermäßig wird. Auf der anderen Seite wird, wenn die Abgastemperatur erhöht werden muss, um den Diesel-Russfilter zu regenerieren, trotz der Tatsache, dass der Motor in den Bereich mit niedriger Reisegeschwindigkeit (oder Leerlauf-Bereich) fällt, der Winkelwert der Verzögerung der Nacheinspritzung entsprechend dem Temperaturanstieg im Abgas übermäßig und der eingespritzte Kraftstoff wird mit einem Schmieröl gemischt für den Fall, dass der Zeitpunkt der Einspritzung der Nacheinspritzung verzögert ist.If However, the condition when running the diesel engine in the idle range or a Low-speed area falls in which the temperature of the exhaust gas naturally is low, can be a sole operation of the device for control the engine does not have the exhaust temperature on the above Raise target temperature. Therefore, if the condition is running of the diesel engine falls into the running range described above, even then, when it was determined that it was time to add the diesel soot filter regenerate, operating the device for controlling the motor do not implement this provision immediately. For this reason The soot is continuously accumulated and the exhaust pressure continues elevated. additionally this often occurs when, on the basis of the provision, that the condition when running the engine from the above Area falls, an attempt is made to carry out the regeneration process for the soot filter which accumulated amount of soot becomes excessive. On the other hand, if the exhaust gas temperature will be increased need to regenerate the diesel soot filter, despite the fact that the engine is in the low-speed range (or idle range) drops, the Angle value of the delay the post injection according to the temperature rise in the exhaust gas excessively and the injected fuel is mixed with a lubricating oil for the Case that the timing of injection of the post-injection is delayed.
Es ist ein Ziel der vorliegenden Erfindung, eine Regenerierungsvorrichtung und ein Verfahren für einen Russfilter zur Verfügung zu stellen sowie eine Vorrichtung zur Reinigung von Abgas, die eine übermäßige Erhöhung des Abgasdrucks, die durch die angesammelten Russpartikel in einem Russfilter verursacht wird, vermeiden können.It An object of the present invention is a regeneration device and a method for a soot filter available to provide as well as a device for purifying exhaust gas, which is an excessive increase in the Exhaust gas pressure caused by the accumulated soot particles in a soot filter caused, can avoid.
Gemäß eines ersten Aspekts der Vorrichtung der vorliegenden Erfindung wird das Ziel nach Hauptanspruch 1 gelöst.According to one In the first aspect of the device of the present invention, the Target solved according to main claim 1.
Gemäß eines Aspekts des Verfahrens der vorliegenden Erfindung wird das zuvor genannte Ziel nach Hauptanspruch 12 gelöst.According to one Aspect of the method of the present invention is the above mentioned target solved according to main claim 12.
Gemäß eines zweiten Aspekts der Vorrichtung wird das zuvor genannte Ziel nach Hauptanspruch 14 gelöst.According to one In the second aspect of the device, the above-mentioned object is repeated Main claim 14 solved.
Bevorzugte Ausführungsformen der vorliegenden Erfindung sind in den jeweiligen Unteransprüchen niedergelegt.preferred embodiments The present invention is defined in the respective subclaims.
Im Folgenden wird die vorliegende Erfindung durch mehrere Ausführungsformen, die auch als Unterkombination dieser beschriebenen Eigenschaften angewandt werden können, detaillierter erklärt in Verbindung mit den beiliegenden Zeichnungen, worin gilt:in the Below, the present invention is described by several embodiments, also as a subcombination of these described properties can be applied explained in more detail in conjunction with the accompanying drawings, in which:
Im Folgenden wird Bezug auf die Zeichnungen genommen, um ein besseres Verständnis der vorliegenden Erfindung zu erreichen.in the Reference will now be made to the drawings for a better understanding to achieve the present invention.
Die
Einspritzdüsen
Auf
der anderen Seite befindet sich ein Turbinen-Abschnitt
Weiterhin
ist ein EGR-Schlauch
Die
Vorrichtung zur Reinigung von Abgas eines Motors
Signale,
die in ECU (elektronische Steuerungseinheit)
Als
nächstes
wird die Bedienung von ECU
Tabelle 1 Table 1
Bevor
das Flussdiagramm von
Der
Antriebsbereich von Motor
In
dem Flussdiagramm, das in
Der
Vergrößerungs-/Verringerungs-Wert
für die
Temperatur-Erhöhungs-Regeneration (de
-modus) dCONTa und der vorrichtungs-gesteuerte variable Vergrößerungs-/Verringerungs-Wert
des Bereichs zur Steuerung des Gleichgewichts dCONTb werden aus
einem Plan gesucht, dem diese Vergrößerungs-/Verringerungs-Werte
zugeordnet sind im Einklang mit dem Laufzustand des Motors (z.B.
Menge der Kraftstoff-Einspritzung
Tp und Motorgeschwindigkeit Ne (Umdrehungsgeschwindigkeit)). Auf
welchen Regenerationsmodus-Vorrichtungs-gesteuerte Vorrichtung dCONTa
und dCONTb festgesetzt werden (für
den Fall einer einzelnen Vorrichtung und für den Fall einer Vielzahl von
Vorrichtungen), ist unterschiedlich je nach dem Laufzustand des
Motors. dCONTa wird festgesetzt, um den Russ aktiv zu verbrennen
und so gesetzt, dass eine Abgastemperatur (beispielsweise 600°C) erhalten
wird, bei der der Russ aktiv verbrannt wird und bei der der Diesel-Russfilter
Es
ist zu bemerken, dass dCONTb erkennbar bei Schritt S16 in
In
dem Flussdiagramm von
Zusammen
mit der Verbrennung des Rußes,
der sich am Diesel-Russfilter
Das
bedeutet, dass bei Schritt S21 ECU
Als
nächstes
wird das obige Vorgehen unter Bezug auf
Das
bedeutet, dass, wenn der Motor
In
dieser Ausführungsform
entsprechen die Schritte S2 und S3 im Flussdiagramm von
Die
folgenden Vorteile können
gemäß der oben
beschriebenen Ausführungsform
erhalten werden. Zunächst
wird, wenn der Russ, der auf dem Diesel-Russfilter
Auf
der anderen Seite kann, wenn der Motor
Zusätzlich kann im Bereich zur Steuerung des Gleichgewichts ein Anstieg der Abgastemperatur auf die Solltemperatur (in dieser Ausführungsform 450°C) verringert werden im Vergleich zu dem Fall, wenn versucht wird, den Russ aktiv zu verbrennen. Daher wird für den Fall, dass, um die Abgastemperatur zu erhöhen, der Zeitpunkt des Einspritzens der Nacheinspritzung verzögert wird, eine Verzögerungsmenge (der Verzögerungswinkel ist gering) verringert. Folglich kann der eingespritzte Kraftstoff nicht mit dem Schmieröl gemischt werden.In addition, can In the area for controlling the equilibrium, an increase in the exhaust gas temperature reduced to the target temperature (in this embodiment 450 ° C) are compared to the case when trying to get the soot active to burn. Therefore, for the case that, to increase the exhaust gas temperature, the timing of injection the post-injection is delayed is, a delay amount (the delay angle is low). Consequently, the injected fuel not with the lubricating oil be mixed.
Als
zweite bevorzugte Ausführungsform
gemäß der vorliegenden
Erfindung kann der Schritt S16 des Flussdiagramms von
Im
Detail setzt ECU
In
der zweiten Ausführungsform
bildet das gesamte Flussdiagramm von
Claims (19)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003004965 | 2003-01-10 | ||
JP2003004965A JP3912289B2 (en) | 2003-01-10 | 2003-01-10 | Particulate filter regeneration device and engine exhaust gas purification device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE602004000261D1 DE602004000261D1 (en) | 2006-02-02 |
DE602004000261T2 true DE602004000261T2 (en) | 2006-06-29 |
Family
ID=32501259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE602004000261T Expired - Lifetime DE602004000261T2 (en) | 2003-01-10 | 2004-01-07 | Apparatus and method for regenerating a particulate filter of an exhaust gas purification device of an internal combustion engine |
Country Status (5)
Country | Link |
---|---|
US (1) | US7137247B2 (en) |
EP (1) | EP1437497B1 (en) |
JP (1) | JP3912289B2 (en) |
CN (1) | CN1308574C (en) |
DE (1) | DE602004000261T2 (en) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050155345A1 (en) * | 2002-03-29 | 2005-07-21 | Tokyo Electron Limited | Device and method for purifying exhaust gas from industrial vehicle engine |
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-
2003
- 2003-01-10 JP JP2003004965A patent/JP3912289B2/en not_active Expired - Fee Related
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2004
- 2004-01-07 DE DE602004000261T patent/DE602004000261T2/en not_active Expired - Lifetime
- 2004-01-07 EP EP04000174A patent/EP1437497B1/en not_active Expired - Fee Related
- 2004-01-08 US US10/752,518 patent/US7137247B2/en not_active Expired - Fee Related
- 2004-01-09 CN CNB2004100020567A patent/CN1308574C/en not_active Expired - Fee Related
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EP1437497B1 (en) | 2005-12-28 |
EP1437497A1 (en) | 2004-07-14 |
US7137247B2 (en) | 2006-11-21 |
CN1526922A (en) | 2004-09-08 |
CN1308574C (en) | 2007-04-04 |
US20040139733A1 (en) | 2004-07-22 |
JP3912289B2 (en) | 2007-05-09 |
DE602004000261D1 (en) | 2006-02-02 |
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